/**************************************************************************//**
 * @file     usbd.c
 * @version  V1.00
 * @brief    M480 USBD driver source file
 *
 * @copyright (C) 2016 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/

#include <string.h>
#include "NuMicro.h"

#ifdef __cplusplus
extern "C"
{
#endif

/** @addtogroup Standard_Driver Standard Driver
  @{
*/

/** @addtogroup USBD_Driver USBD Driver
  @{
*/


/** @addtogroup USBD_EXPORTED_FUNCTIONS USBD Exported Functions
  @{
*/

/* Global variables for Control Pipe */
uint8_t g_usbd_SetupPacket[8] = {0ul};        /*!< Setup packet buffer */
volatile uint8_t g_usbd_RemoteWakeupEn = 0ul; /*!< Remote wake up function enable flag */

/**
 * @cond HIDDEN_SYMBOLS
 */
static uint8_t *g_usbd_CtrlInPointer = 0;
static uint8_t *g_usbd_CtrlOutPointer = 0;
static volatile uint32_t g_usbd_CtrlInSize = 0ul;
static volatile uint32_t g_usbd_CtrlOutSize = 0ul;
static volatile uint32_t g_usbd_CtrlOutSizeLimit = 0ul;
static volatile uint32_t g_usbd_UsbAddr = 0ul;
static volatile uint32_t g_usbd_UsbConfig = 0ul;
static volatile uint32_t g_usbd_CtrlMaxPktSize = 8ul;
static volatile uint32_t g_usbd_UsbAltInterface = 0ul;
static volatile uint8_t g_usbd_CtrlInZeroFlag = 0ul;
/**
 * @endcond
 */

const S_USBD_INFO_T *g_usbd_sInfo;                  /*!< A pointer for USB information structure */

VENDOR_REQ g_usbd_pfnVendorRequest       = NULL;    /*!< USB Vendor Request Functional Pointer */
CLASS_REQ g_usbd_pfnClassRequest         = NULL;    /*!< USB Class Request Functional Pointer */
SET_INTERFACE_REQ g_usbd_pfnSetInterface = NULL;    /*!< USB Set Interface Functional Pointer */
SET_CONFIG_CB g_usbd_pfnSetConfigCallback = NULL;   /*!< USB Set configuration callback function pointer */
uint32_t g_u32EpStallLock                = 0ul;       /*!< Bit map flag to lock specified EP when SET_FEATURE */

/**
  * @brief      This function makes USBD module to be ready to use
  *
  * @param[in]  param           The structure of USBD information.
  * @param[in]  pfnClassReq     USB Class request callback function.
  * @param[in]  pfnSetInterface USB Set Interface request callback function.
  *
  * @return     None
  *
  * @details    This function will enable USB controller, USB PHY transceiver and pull-up resistor of USB_D+ pin. USB PHY will drive SE0 to bus.
  */
void USBD_Open(const S_USBD_INFO_T *param, CLASS_REQ pfnClassReq, SET_INTERFACE_REQ pfnSetInterface)
{
    g_usbd_sInfo = param;
    g_usbd_pfnClassRequest = pfnClassReq;
    g_usbd_pfnSetInterface = pfnSetInterface;
    /* get EP0 maximum packet size */
    g_usbd_CtrlMaxPktSize = g_usbd_sInfo->gu8DevDesc[7];
    /* Initial USB engine */
    USBD->ATTR = 0x6D0ul;
    /* Force SE0 */
    USBD_SET_SE0();
}

/**
  * @brief    This function makes USB host to recognize the device
  *
  * @param    None
  *
  * @return   None
  *
  * @details  Enable WAKEUP, FLDET, USB and BUS interrupts. Disable software-disconnect function after 100ms delay with SysTick timer.
  */
void USBD_Start(void)
{
    /* Disable software-disconnect function */
    USBD_CLR_SE0();
    USBD->ATTR = 0x7D0ul;
    /* Clear USB-related interrupts before enable interrupt */
    USBD_CLR_INT_FLAG(USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET | USBD_INT_WAKEUP);
    /* Enable USB-related interrupts. */
    USBD_ENABLE_INT(USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET | USBD_INT_WAKEUP);
}

/**
  * @brief      Get the received SETUP packet
  *
  * @param[in]  buf A buffer pointer used to store 8-byte SETUP packet.
  *
  * @return     None
  *
  * @details    Store SETUP packet to a user-specified buffer.
  *
  */
void USBD_GetSetupPacket(uint8_t *buf)
{
    USBD_MemCopy(buf, g_usbd_SetupPacket, 8ul);
}

/**
  * @brief    Process SETUP packet
  *
  * @param    None
  *
  * @return   None
  *
  * @details  Parse SETUP packet and perform the corresponding action.
  *
  */
void USBD_ProcessSetupPacket(void)
{
    /* Get SETUP packet from USB buffer */
    USBD_MemCopy(g_usbd_SetupPacket, (uint8_t *)USBD_BUF_BASE, 8ul);

    /* Check the request type */
    switch (g_usbd_SetupPacket[0] & 0x60ul) {
        case REQ_STANDARD: {
            USBD_StandardRequest();
            break;
        }

        case REQ_CLASS: {
            if (g_usbd_pfnClassRequest != NULL) {
                g_usbd_pfnClassRequest();
            }

            break;
        }

        case REQ_VENDOR: {
            if (g_usbd_pfnVendorRequest != NULL) {
                g_usbd_pfnVendorRequest();
            }

            break;
        }

        default: {
            /* Setup error, stall the device */
            USBD_SET_EP_STALL(EP0);
            USBD_SET_EP_STALL(EP1);
            break;
        }
    }
}

/**
  * @brief    Process GetDescriptor request
  *
  * @param    None
  *
  * @return   None
  *
  * @details  Parse GetDescriptor request and perform the corresponding action.
  *
  */
void USBD_GetDescriptor(void)
{
    uint32_t u32Len;
    g_usbd_CtrlInZeroFlag = (uint8_t)0ul;
    u32Len = 0ul;
    u32Len = g_usbd_SetupPacket[7];
    u32Len <<= 8ul;
    u32Len += g_usbd_SetupPacket[6];

    switch (g_usbd_SetupPacket[3]) {
        /* Get Device Descriptor */
        case DESC_DEVICE: {
            u32Len = USBD_Minimum(u32Len, (uint32_t)LEN_DEVICE);
            USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8DevDesc, u32Len);
            break;
        }

        /* Get Configuration Descriptor */
        case DESC_CONFIG: {
            uint32_t u32TotalLen;
            u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[3];
            u32TotalLen = g_usbd_sInfo->gu8ConfigDesc[2] + (u32TotalLen << 8);

            if (u32Len > u32TotalLen) {
                u32Len = u32TotalLen;

                if ((u32Len % g_usbd_CtrlMaxPktSize) == 0ul) {
                    g_usbd_CtrlInZeroFlag = (uint8_t)1ul;
                }
            }

            USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8ConfigDesc, u32Len);
            break;
        }

#if 0

        /* Get BOS Descriptor */
        case DESC_BOS: {
            u32Len = USBD_Minimum(u32Len, LEN_BOS + LEN_BOSCAP);
            USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8BosDesc, u32Len);
            break;
        }

        /* Get HID Descriptor */
        case DESC_HID: {
            /* CV3.0 HID Class Descriptor Test,
               Need to indicate index of the HID Descriptor within gu8ConfigDescriptor, specifically HID Composite device. */
            uint32_t u32ConfigDescOffset;   /* u32ConfigDescOffset is configuration descriptor offset (HID descriptor start index) */
            u32Len = USBD_Minimum(u32Len, LEN_HID);
            u32ConfigDescOffset = g_usbd_sInfo->gu32ConfigHidDescIdx[g_usbd_SetupPacket[4]];
            USBD_PrepareCtrlIn((uint8_t *)&g_usbd_sInfo->gu8ConfigDesc[u32ConfigDescOffset], u32Len);
            break;
        }

#endif

        /* Get Report Descriptor */
        case DESC_HID_RPT: {
            if (u32Len > g_usbd_sInfo->gu32HidReportSize[g_usbd_SetupPacket[4]]) {
                u32Len = g_usbd_sInfo->gu32HidReportSize[g_usbd_SetupPacket[4]];

                if ((u32Len % g_usbd_CtrlMaxPktSize) == 0ul) {
                    g_usbd_CtrlInZeroFlag = (uint8_t)1ul;
                }
            }

            USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8HidReportDesc[g_usbd_SetupPacket[4]], u32Len);
            break;
        }

        /* Get String Descriptor */
        case DESC_STRING: {
            /* Get String Descriptor */
            if (g_usbd_SetupPacket[2] < 4ul) {
                if (u32Len > g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]][0]) {
                    u32Len = g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]][0];

                    if ((u32Len % g_usbd_CtrlMaxPktSize) == 0ul) {
                        g_usbd_CtrlInZeroFlag = (uint8_t)1ul;
                    }
                }

                USBD_PrepareCtrlIn((uint8_t *)g_usbd_sInfo->gu8StringDesc[g_usbd_SetupPacket[2]], u32Len);
                break;
            } else {
                /* Not support. Reply STALL. */
                USBD_SET_EP_STALL(EP0);
                USBD_SET_EP_STALL(EP1);
                break;
            }
        }

        default:
            /* Not support. Reply STALL.*/
            USBD_SET_EP_STALL(EP0);
            USBD_SET_EP_STALL(EP1);
            break;
    }
}

/**
  * @brief    Process standard request
  *
  * @param    None
  *
  * @return   None
  *
  * @details  Parse standard request and perform the corresponding action.
  *
  */
void USBD_StandardRequest(void)
{
    uint32_t addr;
    /* clear global variables for new request */
    g_usbd_CtrlInPointer = 0;
    g_usbd_CtrlInSize = 0ul;

    if ((g_usbd_SetupPacket[0] & 0x80ul) == 0x80ul) { /* request data transfer direction */
        /* Device to host */
        switch (g_usbd_SetupPacket[1]) {
#if 0

            case GET_CONFIGURATION: {
                /* Return current configuration setting */
                /* Data stage */
                addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
                M8(addr) = (uint8_t)g_usbd_UsbConfig;
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 1ul);
                /* Status stage */
                USBD_PrepareCtrlOut(0, 0ul);
                break;
            }

#endif

            case GET_DESCRIPTOR: {
                USBD_GetDescriptor();
                USBD_PrepareCtrlOut(0, 0ul); /* For status stage */
                break;
            }

#if 0

            case GET_INTERFACE: {
                /* Return current interface setting */
                /* Data stage */
                addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
                M8(addr) = (uint8_t)g_usbd_UsbAltInterface;
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 1ul);
                /* Status stage */
                USBD_PrepareCtrlOut(0, 0ul);
                break;
            }

            case GET_STATUS: {
                /* Device */
                if (g_usbd_SetupPacket[0] == 0x80ul) {
                    uint8_t u8Tmp;
                    u8Tmp = (uint8_t)0ul;

                    if ((g_usbd_sInfo->gu8ConfigDesc[7] & 0x40ul) == 0x40ul) {
                        u8Tmp |= (uint8_t)1ul; /* Self-Powered/Bus-Powered.*/
                    }

                    if ((g_usbd_sInfo->gu8ConfigDesc[7] & 0x20ul) == 0x20ul) {
                        u8Tmp |= (uint8_t)(g_usbd_RemoteWakeupEn << 1ul); /* Remote wake up */
                    }

                    addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
                    M8(addr) = u8Tmp;
                }
                /* Interface */
                else if (g_usbd_SetupPacket[0] == 0x81ul) {
                    addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
                    M8(addr) = (uint8_t)0ul;
                }
                /* Endpoint */
                else if (g_usbd_SetupPacket[0] == 0x82ul) {
                    uint8_t ep = (uint8_t)(g_usbd_SetupPacket[4] & 0xFul);
                    addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
                    M8(addr) = (uint8_t)(USBD_GetStall(ep) ? 1ul : 0ul);
                }

                addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0) + 1ul;
                M8(addr) = (uint8_t)0ul;
                /* Data stage */
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 2ul);
                /* Status stage */
                USBD_PrepareCtrlOut(0, 0ul);
                break;
            }

#endif

            default: {
                /* Setup error, stall the device */
                USBD_SET_EP_STALL(EP0);
                USBD_SET_EP_STALL(EP1);
                break;
            }
        }
    } else {
        /* Host to device */
        switch (g_usbd_SetupPacket[1]) {
            case CLEAR_FEATURE: {
                if (g_usbd_SetupPacket[2] == FEATURE_ENDPOINT_HALT) {
                    uint32_t epNum, i;
                    /* EP number stall is not allow to be clear in MSC class "Error Recovery Test".
                       a flag: g_u32EpStallLock is added to support it */
                    epNum = (uint8_t)(g_usbd_SetupPacket[4] & 0xFul);

                    for (i = 0ul; i < USBD_MAX_EP; i++) {
                        if (((USBD->EP[i].CFG & 0xFul) == epNum) && ((g_u32EpStallLock & (1ul << i)) == 0ul)) {
                            USBD->EP[i].CFGP &= ~USBD_CFGP_SSTALL_Msk;
                            USBD->EP[i].CFG &= ~USBD_CFG_DSQSYNC_Msk;
                        }
                    }
                } else if (g_usbd_SetupPacket[2] == FEATURE_DEVICE_REMOTE_WAKEUP) {
                    g_usbd_RemoteWakeupEn = (uint8_t)0;
                }

                /* Status stage */
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 0ul);
                break;
            }

            case SET_ADDRESS: {
                g_usbd_UsbAddr = g_usbd_SetupPacket[2];
                /* Status Stage */
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 0ul);
                break;
            }

            case SET_CONFIGURATION: {
                g_usbd_UsbConfig = g_usbd_SetupPacket[2];

                if (g_usbd_pfnSetConfigCallback) {
                    g_usbd_pfnSetConfigCallback();
                }

                /* Status stage */
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 0ul);
                break;
            }

            case SET_FEATURE: {
#if 0

                if ((g_usbd_SetupPacket[0] & 0xFul) == 0ul) {  /* 0: device */
                    if ((g_usbd_SetupPacket[2] == 3ul) && (g_usbd_SetupPacket[3] == 0ul)) { /* 3: HNP enable */
                        OTG->CTL |= (OTG_CTL_HNPREQEN_Msk | OTG_CTL_BUSREQ_Msk);
                    }
                }

#endif

                if (g_usbd_SetupPacket[2] == FEATURE_ENDPOINT_HALT) {
                    USBD_SetStall((uint8_t)(g_usbd_SetupPacket[4] & 0xFul));
                } else if (g_usbd_SetupPacket[2] == FEATURE_DEVICE_REMOTE_WAKEUP) {
                    g_usbd_RemoteWakeupEn = (uint8_t)1ul;
                }

                /* Status stage */
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 0ul);
                break;
            }

#if 0

            case SET_INTERFACE: {
                g_usbd_UsbAltInterface = g_usbd_SetupPacket[2];

                if (g_usbd_pfnSetInterface != NULL) {
                    g_usbd_pfnSetInterface(g_usbd_UsbAltInterface);
                }

                /* Status stage */
                USBD_SET_DATA1(EP0);
                USBD_SET_PAYLOAD_LEN(EP0, 0ul);
                break;
            }

#endif

            default: {
                /* Setup error, stall the device */
                USBD_SET_EP_STALL(EP0);
                USBD_SET_EP_STALL(EP1);
                break;
            }
        }
    }
}

/**
  * @brief      Prepare the first Control IN pipe
  *
  * @param[in]  pu8Buf  The pointer of data sent to USB host.
  * @param[in]  u32Size The IN transfer size.
  *
  * @return     None
  *
  * @details    Prepare data for Control IN transfer.
  *
  */
void USBD_PrepareCtrlIn(uint8_t pu8Buf[], uint32_t u32Size)
{
    uint32_t addr;

    if (u32Size > g_usbd_CtrlMaxPktSize) {
        /* Data size > MXPLD */
        g_usbd_CtrlInPointer = pu8Buf + g_usbd_CtrlMaxPktSize;
        g_usbd_CtrlInSize = u32Size - g_usbd_CtrlMaxPktSize;
        USBD_SET_DATA1(EP0);
        addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
        USBD_MemCopy((uint8_t *)addr, pu8Buf, g_usbd_CtrlMaxPktSize);
        USBD_SET_PAYLOAD_LEN(EP0, g_usbd_CtrlMaxPktSize);
    } else {
        /* Data size <= MXPLD */
        g_usbd_CtrlInPointer = 0;
        g_usbd_CtrlInSize = 0ul;
        USBD_SET_DATA1(EP0);
        addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
        USBD_MemCopy((uint8_t *)addr, pu8Buf, u32Size);
        USBD_SET_PAYLOAD_LEN(EP0, u32Size);
    }
}

/**
  * @brief    Repeat Control IN pipe
  *
  * @param    None
  *
  * @return   None
  *
  * @details  This function processes the remained data of Control IN transfer.
  *
  */
void USBD_CtrlIn(void)
{
    uint32_t addr;

    if (g_usbd_CtrlInSize) {
        /* Process remained data */
        if (g_usbd_CtrlInSize > g_usbd_CtrlMaxPktSize) {
            /* Data size > MXPLD */
            addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
            USBD_MemCopy((uint8_t *)addr, (uint8_t *)g_usbd_CtrlInPointer, g_usbd_CtrlMaxPktSize);
            USBD_SET_PAYLOAD_LEN(EP0, g_usbd_CtrlMaxPktSize);
            g_usbd_CtrlInPointer += g_usbd_CtrlMaxPktSize;
            g_usbd_CtrlInSize -= g_usbd_CtrlMaxPktSize;
        } else {
            /* Data size <= MXPLD */
            addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0);
            USBD_MemCopy((uint8_t *)addr, (uint8_t *)g_usbd_CtrlInPointer, g_usbd_CtrlInSize);
            USBD_SET_PAYLOAD_LEN(EP0, g_usbd_CtrlInSize);
            g_usbd_CtrlInPointer = 0;
            g_usbd_CtrlInSize = 0ul;
        }
    } else {
        /* In ACK for Set address */
        if ((g_usbd_SetupPacket[0] == REQ_STANDARD) && (g_usbd_SetupPacket[1] == SET_ADDRESS)) {
            addr = USBD_GET_ADDR();

            if ((addr != g_usbd_UsbAddr) && (addr == 0ul)) {
                USBD_SET_ADDR(g_usbd_UsbAddr);
            }
        }

        /* For the case of data size is integral times maximum packet size */
        if (g_usbd_CtrlInZeroFlag) {
            USBD_SET_PAYLOAD_LEN(EP0, 0ul);
            g_usbd_CtrlInZeroFlag = (uint8_t)0ul;
        }
    }
}

/**
  * @brief      Prepare the first Control OUT pipe
  *
  * @param[in]  pu8Buf  The pointer of data received from USB host.
  * @param[in]  u32Size The OUT transfer size.
  *
  * @return     None
  *
  * @details    This function is used to prepare the first Control OUT transfer.
  *
  */
void USBD_PrepareCtrlOut(uint8_t *pu8Buf, uint32_t u32Size)
{
    g_usbd_CtrlOutPointer = pu8Buf;
    g_usbd_CtrlOutSize = 0ul;
    g_usbd_CtrlOutSizeLimit = u32Size;
    USBD_SET_PAYLOAD_LEN(EP1, g_usbd_CtrlMaxPktSize);
}

/**
  * @brief    Repeat Control OUT pipe
  *
  * @param    None
  *
  * @return   None
  *
  * @details  This function processes the successive Control OUT transfer.
  *
  */
void USBD_CtrlOut(void)
{
    uint32_t u32Size;
    uint32_t addr;

    if (g_usbd_CtrlOutSize < g_usbd_CtrlOutSizeLimit) {
        u32Size = USBD_GET_PAYLOAD_LEN(EP1);
        addr = USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP1);
        USBD_MemCopy((uint8_t *)g_usbd_CtrlOutPointer, (uint8_t *)addr, u32Size);
        g_usbd_CtrlOutPointer += u32Size;
        g_usbd_CtrlOutSize += u32Size;

        if (g_usbd_CtrlOutSize < g_usbd_CtrlOutSizeLimit) {
            USBD_SET_PAYLOAD_LEN(EP1, g_usbd_CtrlMaxPktSize);
        }
    }
}

/**
  * @brief    Reset software flags
  *
  * @param    None
  *
  * @return   None
  *
  * @details  This function resets all variables for protocol and resets USB device address to 0.
  *
  */
void USBD_SwReset(void)
{
    uint32_t i;
    /* Reset all variables for protocol */
    g_usbd_CtrlInPointer = 0;
    g_usbd_CtrlInSize = 0ul;
    g_usbd_CtrlOutPointer = 0;
    g_usbd_CtrlOutSize = 0ul;
    g_usbd_CtrlOutSizeLimit = 0ul;
    g_u32EpStallLock = 0ul;
    memset(g_usbd_SetupPacket, 0, 8ul);

    /* Reset PID DATA0 */
    for (i = 0ul; i < USBD_MAX_EP; i++) {
        USBD->EP[i].CFG &= ~USBD_CFG_DSQSYNC_Msk;
    }

    /* Reset USB device address */
    USBD_SET_ADDR(0ul);
}

/**
 * @brief       USBD Set Vendor Request
 *
 * @param[in]   pfnVendorReq    Vendor Request Callback Function
 *
 * @return      None
 *
 * @details     This function is used to set USBD vendor request callback function
 */
void USBD_SetVendorRequest(VENDOR_REQ pfnVendorReq)
{
    g_usbd_pfnVendorRequest = pfnVendorReq;
}

/**
 * @brief       The callback function which called when get SET CONFIGURATION request
 *
 * @param[in]   pfnSetConfigCallback    Callback function pointer for SET CONFIGURATION request
 *
 * @return      None
 *
 * @details     This function is used to set the callback function which will be called at SET CONFIGURATION request.
 */
void USBD_SetConfigCallback(SET_CONFIG_CB pfnSetConfigCallback)
{
    g_usbd_pfnSetConfigCallback = pfnSetConfigCallback;
}


/**
 * @brief       EP stall lock function to avoid stall clear by USB SET FEATURE request.
 *
 * @param[in]   u32EpBitmap    Use bitmap to select which endpoints will be locked
 *
 * @return      None
 *
 * @details     This function is used to lock relative endpoint to avoid stall clear by SET FEATURE request.
 *              If ep stall locked, user needs to reset USB device or re-configure device to clear it.
 */
void USBD_LockEpStall(uint32_t u32EpBitmap)
{
    g_u32EpStallLock = u32EpBitmap;
}


/*@}*/ /* end of group USBD_EXPORTED_FUNCTIONS */

/*@}*/ /* end of group USBD_Driver */

/*@}*/ /* end of group Standard_Driver */

#ifdef __cplusplus
}
#endif

/*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/
